Finding the Fourth Proportional to 107,970.31, 149,046.83 and 69,748.48

Step by Step Solution

1. Step 1: Write the proportion equation
   107,970.31 : 149,046.83 = 69,748.48 : x
2. Step 2: Convert to fraction form
   107,970.31/149,046.83 = 69,748.48/x
3. Step 3: Cross multiply
   107,970.31x = 149,046.83 × 69,748.48
4. Step 4: Simplify right side
   107,970.31x = 10,395,789,841.32
5. Step 5: Solve for x
   x = 10,395,789,841.32/107,970.31
6. Step 6: Final answer
   x = 96,283.78